Turbulent gas flow structure under unsteady hydrodynamic conditions

被引：0
|
作者：
Bukharkin, V.B. [1 ]
Dreitser, G.A. [1 ]
Kraev, V.M. [1 ]
机构：
[1] Moscow State Aviation Inst. (T.U.), Moscow, Russia
来源：
Heat Transfer Research | 2001年 / 32卷 / 7-8期
关键词：
Boundary conditions - Heat transfer coefficients - Hydrodynamics - Pipe flow - Temperature - Unsteady flow - Velocity - Viscosity of gases;
D O I：
10.1615/heattransres.v32.i7-8.70
中图分类号：
学科分类号：
摘要：
The data obtained on the structure of a turbulent circular tube gas flow in the case of hydrodynamic unstable influence of averaged velocity longitudinal and radial components fields, their pulsations and correlations. These are supplemented with the data on the influence of stationary conditions on the turbulent coefficient and heat transfer coefficient. The existence of the zone of greatest changes in the structure parameters is confirmed. It is found that the flow nonisothermicity enhances the influence of hydrodynamic instability. Under nonisothermal boundary conditions, after the removal of the effect, the return of structure characteristics to the stationary influence slow down considerably. A new dimensionless criterion of hydrodynamic instability is suggested.
引用
收藏
页码：386 / 394
相关论文
共 50 条
  • [21] Theoretical calculations on the drying of a powder under turbulent hydrodynamic conditions
    Mushtaev, VI
    CHEMICAL AND PETROLEUM ENGINEERING, 1999, 35 (11-12) : 651 - 659
  • [22] Theoretical calculations on the drying of a powder under turbulent hydrodynamic conditions
    V. I. Mushtaev
    Chemical and Petroleum Engineering, 1999, 35 : 651 - 659
  • [23] Hydrodynamic flow of the eutectic under the conditions of superplasticity
    V. F. Korshak
    A. P. Kryshtal’
    Yu. A. Shapovalov
    A. L. Samsonik
    The Physics of Metals and Metallography, 2010, 110 : 385 - 393
  • [24] Hydrodynamic Flow of the Eutectic under the Conditions of Superplasticity
    Korshak, V. F.
    Kryshtal, A. P.
    Shapovalov, Yu. A.
    Samsonik, A. L.
    PHYSICS OF METALS AND METALLOGRAPHY, 2010, 110 (04): : 385 - 393
  • [25] Unsteady motion of a hard sphere in nonuniformly heated gas under conditions of small Reynolds numbers: Hydrodynamic problem
    Yalamov, YI
    Dyakonov, SN
    HIGH TEMPERATURE, 1996, 34 (01) : 36 - 41
  • [26] Unsteady Motion of a Hard Sphere in Nonuniformly Heated Gas under Conditions of Small Reynolds Numbers: Hydrodynamic Problem
    Yalamov, Y. I.
    D'yakonov, N.
    High Temperature (English translation of Teplofizika Vysokikh Temperatur), 1996, 34 (01):
  • [27] An investigation of thermal and hydrodynamic behaviour of compound fins under turbulent flow conditions: A numerical and experimental approach
    Tariq, Adeel
    Ahmed, Syed Waqar
    Bin Baharom, Masri
    Altaf, Khurram
    Hussain, Ghulam
    Jamil, Abdullah
    Mohammed, Salah E.
    Ali, Hafiz Muhammad
    ALEXANDRIA ENGINEERING JOURNAL, 2024, 89 : 149 - 171
  • [28] HYDRODYNAMIC AND THERMAL EFFECTS OF DRAG AND HEAT TRANSFER COEFFICIENTS UNDER LAMINAR UNSTEADY FLOW CONDITIONS IN POROUS MEDIA
    Pathak, Mihir G.
    Mulcahey, Thomas I.
    Ghiaasiaan, S. M.
    ADVANCES IN CRYOGENIC ENGINEERING, VOLS 57A AND 57B, 2012, 1434 : 1875 - 1882
  • [29] The Damping Coefficient of a Pressure Wave under Conditions of Pulsating Turbulent Flow of Gas in a Channel
    E. P. Valueva
    A. A. Kulik
    High Temperature, 2003, 41 : 486 - 491
  • [30] The damping coefficient of a pressure wave under conditions of pulsating turbulent flow of gas in a channel
    Valueva, EP
    Kulik, AA
    HIGH TEMPERATURE, 2003, 41 (04) : 486 - 491
12345