Related Experiment Video
Updated: Jul 18, 2026

Thermocapillary Convection Space Experiment on the SJ-10 Recoverable Satellite
Published on: March 11, 2020
Hydrostatic compressibility phenomena: new opportunities for near-critical research in microgravity
V I Polezhaev1, A A Gorbunov, S A Nikitin
1The Institute for Problems in Mechanics, Russian Academy of Sciences, Prospect Vernadskogo 101, b.1, Moscow 119526, Russia. polezh@ipmnet.ru
Abstract:
Peculiarities of the isothermal and isentropic equilibrium in highly compressible media with nonperfect state equations are discussed. Formulation of the adiabatic temperature gradient using Schwarzschild criterion and equilibrium equations for nonperfect gas are considered. Criterion for the onset of convection in the van der Waals (VDW) gas is examined using direct numerical modeling on the basis of equation for convection in compressible viscous nonperfect gas. Results of three-dimensional modeling near-critical convection in the vicinity of the convection onset in space flight with quasi-steady microaccelerations are given. A proposal for the microgravity research of the near-critical convection is discussed.
More Related Videos
Related Concept Videos
Buoyancy and Stability for Submerged and Floating Bodies
Density, Specific Weight, Specific Gravity and Compressibility of Fluid
Specific weight represents the weight per unit volume and is calculated by multiplying density...
Hydrostatic Pressure Force on a Curved Surface
Hydrostatic Pressure Force on a Plane Surface
Pressure of Fluids
Characteristics of Fluids

