1.vortex heat transfer enhancement on energy-efficient surfaces, structured by dimple
2. control of separated flow and heat transfer, including with the help of shield generators of large-scale vortices and embedded vortex cells with suction
3. building aerodynamics of high-rise structures
4.multi-block computing technologies based on intersecting multi-scale grids in the VP2 / 3 application package (velocity-pressure, 2D / 3D)
5. modeling of turbulence, URANS, MSST with amendments to curvature of streamlines, testing models for separated flows
Main publications:
1.Isaev S.A., Zhdanov V.L., Niemann H.-J. Numerical study of the bleeding effect on the aerodynamic characteristics of a circular cylinder // J. Wind Eng. Ind. Aerodyn. 2002, Vol. 90, Issue 11, pp. 1217-1226.
2.Isaev S.A., Kornev N.V., Leontiev A.I., Hassel E. Influence of the Reynolds number and the spherical dimple depth on the turbulent heat transfer and hydraulic loss in a narrow channel // Int. J. Heat Mass Transfer. 2010. Vol.53. Issues 1-3. P.178-197.
3.Isaev S.A., Schelchkov A.V., Leontiev A.I., Baranov P.A., Gulcova M.E. Numerical simulation of the turbulent air flow in the narrow channel with a heated wall and a spherical dimple placed on it for vortex heat transfer enhancement depending on the dimple depth // Int. J. Heat and Mass Transfer. 2016. Vol.94. P.426-448.
4.Isaev S., Baranov P., Popov I., Sudakov A., Usachov A. Improvement of aerodynamic characteristics of a thick airfoil with a vortex cell in sub- and transonic flow // Acta Astronautica. 2017. Vol.132. P.204 –220.
5.Isaev S.A., Schelchkov A.V., Leontiev A.I., Gortyshov Yu.F., Baranov P.A., Popov I.A. Tornado-like heat transfer enhancement in the narrow plane-parallel channel with the oval-trench dimple of fixed depth and spot area // International Journal of Heat and Mass Transfer. 2017. Vol.109. P. 40-62.
6.Isaev S., Baranov P., Popov I., Sudakov A., Usachov A., Guvernyuk S., Sinyavin A., Chulyunin A., Mazo A., Demidov D. Ensuring safe descend of reusable rocket stages – numerical simulation and experiments on subsonic turbulent air flow around a semi-circular cylinder at zero angle of attack and moderate Reynolds number // Acta Astronautica. 2018. Vol.150. P.117-136.
S. A. Isaev, A. Yu. Chulyunin, M. S. Gritckevich, E. A. Nikushchenko, N. I. Mikheev, N. S. Dushin, “Валидация подходов к решению осредненных по Рейнольдсу уравнений Навье–Стокса и вихреразрешающих методов при исследовании аномальной интенсификации турбулентного отрывного течения на стабилизированном гидродинамическом участке структурированного канала с двухрядными наклонными канавками”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 52:7 (2026), 22–26
2.
S. A. Isaev, A. Yu. Chulyunin, D. V. Nikushchenko, A. G. Sudakov, “Validation of rans and eddy-resolving methods in the study of anomalous intensification of turbulent separated flow in a stabilized hydrodynamic section of a structured channel with two-row inclined grooves”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 52:1 (2026), 18–22
2025
3.
S. A. Isaev, D. V. Nikushchenko, A. A. Klyus, A. G. Sudakov, V. V. Seroshtanov, A. Yu. Chulyunin, “Formation of turbulent tornado-like structures in a longitudinally oriented groove on the channel wall during tip deflection and vortex heat transfer enhancement”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 51:6 (2025), 3–7
2024
4.
S. A. Isaev, E. A. Nikushchenko, D. V. Nikushchenko, N. S. Dushin, A. G. Sudakov, “Vortex intensification of laminar heat transfer in a stabilized section of a channel with two-row inclined grooves when pumping coolants with different Prandtl numbers”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 50:21 (2024), 24–28
5.
S. A. Isaev, D. V. Nikushchenko, A. A. Mironov, I. A. Popov, A. A. Klyus, A. G. Sudakov, “Heat transfer enhancement in an inclined boomerang groove on a heated channel wall with the end portion oriented along the flow”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 50:20 (2024), 20–23
6.
S. A. Isaev, D. V. Nikushchenko, N. I. Mikheev, N. Dushin, O. O. Mil'man, A. Klyus, E. A. Osiyuk, “Местное ускорение ламинарного потока и аномальная интенсификация теплообмена в канале с двумя рядами наклонных канавок”, TVT, 62:4 (2024), 524–535
2023
7.
S. A. Isaev, D. V. Nikushchenko, L. S. Yanovskii, A. Yu. Chulyunin, “Influence of blowing a jet from a thin tube on the generation of a tornado-like vortex and the intensification of a developing swirling turbulent flow in an inclined groove on a channel wall”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 49:18 (2023), 28–32
8.
S. A. Isaev, S. V. Guvernyuk, D. V. Nikushchenko, A. G. Sudakov, A. A. Sinyavin, E. B. Dubko, “Correlation between the abnormal enhancement of the separated flow and extraordinary pressure drops in the groove on the plate when the angle of inclination changes from 0 to 90$^\circ$”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 49:15 (2023), 39–42
S. A. Isaev, D. V. Nikushchenko, I. A. Popov, A. G. Sudakov, N. V. Tryaskin, L. P. Iunakov, “Heat transfer enhancement in a dimpled narrow channel during the transformation of separated turbulent flow with increasing slope angle of a solitary conical dimple”, TVT, 60:2 (2022), 235–241; High Temperature, 60:2 (2022), 208–214
S. A. Isaev, J.-J. Miau, D. V. Nikushchenko, A. G. Sudakov, A. E. Usachov, “Modeling the influence of wind shear on reducing the drag of an energy-efficient high-level structure using a throttle effect”, Mat. Model., 33:7 (2021), 5–17; Math. Models Comput. Simul., 14:1 (2022), 73–80
S. A. Isaev, D. V. Nikushchenko, A. G. Sudakov, N. V. Tryaskin, L. P. Iunakov, “Transformation of a separated turbulent flow in a conical dimple at the wall of a narrow channel and reduction in hydraulic losses as conicity increases”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 47:11 (2021), 21–25; Tech. Phys. Lett., 47:8 (2021), 557–560
S. A. Isaev, A. Yu. Chulyunin, D. V. Nikushchenko, A. G. Sudakov, A. E. Usachov, “Analysis of the anomalous intensification of a separate flow and heat transfer in a stabilized section of a narrow channel with single-row, inclined, oval-trench dimples with the use of various grids and turbulence models”, TVT, 59:1 (2021), 116–125; High Temperature, 59:1 (2021), 106–114
S. A. Isaev, A. B. Mazo, D. V. Nikushchenko, I. A. Popov, A. G. Sudakov, “The influence of the angle of inclination of single-row oval-trench dimples in the stabilized hydrodynamic section of a narrow channel on the anomalous intensification of the separated turbulent flow”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 46:21 (2020), 18–21; Tech. Phys. Lett., 46:11 (2020), 1064–1067
S. A. Isaev, A. G. Sudakov, A. D. Chorny, Yu. V. Zhukova, A. G. Usachov, “Heat transfer enhancement in a microtube with an in-line package of spherical and inclined oval-trench dimples during transformer-oil pumping”, TVT, 57:6 (2019), 893–897; High Temperature, 57:6 (2019), 885–888
S. A. Isaev, M. S. Gritckevich, A. I. Leont'ev, I. A. Popov, A. G. Sudakov, “Anomalous intensification of a turbulent separated flow in inclined, single-row, oval-trench dimples on the wall of a narrow channel”, TVT, 57:5 (2019), 797–800; High Temperature, 57:5 (2019), 771–774
S. A. Isaev, V. N. Afanas'ev, K. S. Egorov, Dehai Kong, “Experimental study of the influence of the shape of the gap between the rib and flat plate on the near-wall flow structure and heat transfer”, TVT, 57:3 (2019), 416–425; High Temperature, 57:3 (2019), 379–387
S. A. Isaev, P. A. Baranov, A. I. Leont'ev, I. A. Popov, “Intensification of a laminar flow in a narrow microchannel with single-row inclined oval-trench dimples”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 44:9 (2018), 73–80; Tech. Phys. Lett., 44:5 (2018), 398–400
S. A. Isaev, P. A. Baranov, A. G. Sudakov, I. A. Popov, A. E. Usachov, “Controlling the flow past a semicircular airfoil at zero angle of attack using slot suction in one or two vortex cells for attaining extremal lift”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 43:24 (2017), 53–58; Tech. Phys. Lett., 43:12 (2017), 1115–1117
S. A. Isaev, P. A. Baranov, A. G. Sudakov, I. A. Popov, A. E. Usachov, “Estimation of the lifetime of a trapped vortex in a circular cavern on a semicircular airfoil streamlined at a zero angle of attack after switching off slot suction”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 43:7 (2017), 32–39; Tech. Phys. Lett., 43:4 (2017), 338–340
S. A. Isaev, P. A. Baranov, A. G. Sudakov, I. A. Popov, “Verification of the standard model of shear stress transport and its modified version that takes into account the streamline curvature and estimation of the applicability of the Menter combined boundary conditions in calculating the ultralow profile drag for an optimally configured cylinder–coaxial disk arrangement”, Zhurnal Tekhnicheskoi Fiziki, 86:8 (2016), 32–41; Tech. Phys., 61:8 (2016), 1152–1161
S. A. Isaev, J.-J. Miau, A. G. Sudakov, A. E. Usachov, “Analysis of extremal lift behavior of a semicircular airfoil in a turbulent airflow at a near-zero angle of attack”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 41:15 (2015), 46–52; Tech. Phys. Lett., 41:8 (2015), 737–739
S. A. Isaev, A. I. Leont'ev, M. E. Gul’tsova, I. A. Popov, “Transformation and intensification of tornado-like flow in a narrow channel during elongation of an oval dimple with constant area”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 41:12 (2015), 89–96; Tech. Phys. Lett., 41:6 (2015), 606–609
S. A. Isaev, A. G. Sudakov, A. E. Usachov, V. B. Kharchenko, “Modeling an increase in the lift and aerodynamic efficiency of a thick Göttingen airfoil with optimum arrangement”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 41:11 (2015), 103–110; Tech. Phys. Lett., 41:6 (2015), 561–564
S. A. Isaev, E. I. Kalinin, A. A. Tereshkin, A. E. Usachov, “Modeling a decrease in hydraulic losses during turbulent flow in a U-bend channel with a circular cavern with a large opening angle”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 41:6 (2015), 90–97; Tech. Phys. Lett., 41:3 (2015), 298–300
S. A. Isaev, P. A. Baranov, A. G. Sudakov, A. M. Ermakov, “Modeling the increase in aerodynamic efficiency for a thick (37.5% chord) airfoil with slot suction in vortex cells with allowance for the compressibility effect”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 41:2 (2015), 49–57; Tech. Phys. Lett., 41:1 (2015), 76–79
S. A. Isaev, N. I. Vatin, S. V. Guvernyuk, V. G. Gagarin, B. I. Basok, Yu. V. Zhukova, “Drag reduction of energy-efficient buildings and wind energy extraction due to bleeding effect”, TVT, 53:6 (2015), 918–922; High Temperature, 53:6 (2015), 873–876
S. A. Isaev, Yu. V. Zhukova, P. A. Baranov, A. G. Sudakov, “Numerical investigation of the effect of roughness on convective heat transfer under stationary laminar flow of M20 oil around a circular cylinder”, TVT, 53:5 (2015), 765–772; High Temperature, 53:5 (2015), 726–733
S. A. Isaev, A. I. Leont'ev, N. V. Kornev, E. Hassel, J. P. Chudnovskiy, “Heat-transfer intensification at laminar and turbulant flows in a narrow channel with one-row oval dimples”, TVT, 53:3 (2015), 390–402; High Temperature, 53:3 (2015), 375–386
S. A. Isaev, P. A. Baranov, A. N. Mikhalev, A. G. Sudakov, “Modeling the effect of head drag reduction for a cylinder with a protruding disk at high mach numbers”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 40:22 (2014), 21–29; Tech. Phys. Lett., 40:11 (2014), 996–999
S. A. Isaev, P. A. Baranov, N. I. Vatin, Yu. V. Zhukova, A. G. Sudakov, “Suppression of the Karman vortex street and reduction in the frontal drag of a circular cylinder with two vortex cells”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 40:15 (2014), 50–57; Tech. Phys. Lett., 40:8 (2014), 653–656
S. A. Isaev, P. A. Baranov, A. G. Sudakov, A. E. Usachov, “Expansion of the range of critical mach numbers during control of transonic flow past a thick (20% chord) MQ airfoil with slot suction in a circular vortex flow”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 40:10 (2014), 22–29; Tech. Phys. Lett., 40:5 (2014), 417–420
S. A. Isaev, J. M. Lipnickii, A. N. Mikhalev, A. V. Panasenko, P. A. Baranov, “Simulation of reducing the drag of a Soyuz-type missile's reentry vehicle with a coaxial disk placed in front of it”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 39:16 (2013), 80–86; Tech. Phys. Lett., 39:8 (2013), 748–750
S. A. Isaev, A. I. Leont'ev, M. A. Gotovskii, A. E. Usachov, Yu. V. Zhukova, “Analysis of thermohydraulic efficiency increase during transformer oil flow in a minichannel with a single-row package of spherical and oval dimples at a heated wall”, TVT, 51:6 (2013), 884–890; High Temperature, 51:6 (2013), 804–809
S. A. Isaev, A. I. Leont'ev, N. A. Kudryavtsev, T. A. Baranova, D. A. Lysenko, “Numerical Simulation of Unsteady-State Heat Transfer under Conditions of Laminar Transverse Flow past a Circular Cylinder”, TVT, 43:5 (2005), 745–758; High Temperature, 43:5 (2005), 746–759
G. A. Dreitser, S. A. Isaev, I. E. Lobanov, “Calculation of convective heat transfer in a pipe with periodically arranged surface vortex generators”, TVT, 43:2 (2005), 223–230; High Temperature, 43:2 (2005), 214–221
S. A. Isaev, A. I. Leont'ev, N. A. Kudryavtsev, “Numerical simulation of hydrodynamics and heat transfer under conditions of turbulent transverse flow past a “trench” on a plane surface”, TVT, 43:1 (2005), 86–99; High Temperature, 43:1 (2005), 89–102
S. A. Isaev, P. A. Baranov, N. A. Kudryavtsev, “Numerical simulation of heat transfer under conditions of turbulent separated flow in tube banks”, TVT, 42:2 (2004), 291–301; High Temperature, 42:2 (2004), 290–301
S. A. Isaev, A. I. Leont'ev, G. S. Sadovnikov, “Conjugate turbulent heat transfer in the zone of incidence of a pressure shock on a wall with a porous insert”, TVT, 42:1 (2004), 72–76; High Temperature, 42:1 (2004), 68–72
2003
39.
S. A. Isaev, A. I. Leont'ev, “Numerical simulation of vortex enhancement of heat transfer under conditions of turbulent flow past a spherical dimple on the wall of a narrow channel”, TVT, 41:5 (2003), 755–770; High Temperature, 41:5 (2003), 665–679
S. A. Isaev, A. I. Leont'ev, N. A. Kudryavtsev, I. A. Pyshnyi, “The effect of rearrangement of the vortex structure on heat transfer under conditions of increasing depth of a spherical dimple on the wall of a narrow channel”, TVT, 41:2 (2003), 268–272; High Temperature, 41:2 (2003), 229–232
I. A. Belov, S. A. Isaev, “Circulatory flow in a rectangular cavity at medium and high Reynolds numbers”, Prikl. Mekh. Tekh. Fiz., 23:1 (1982), 41–45; J. Appl. Mech. Tech. Phys., 23:1 (1982), 35–38
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