Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Simon Ostrach"'
Autor:
Simon Ostrach
Publikováno v:
Technology in Society. 30:411-414
If humans are to explore space beyond low-earth orbit, their health and welfare must be ensured, not only for survival in harsh environments but also so that they can work productively. The requisite technologies, and human physiology itself, are sub
Publikováno v:
Journal of Mechanics. 19:349-355
Electrochemical experiments in microgravity are essential for the optimum design of advanced life support systems and power storage systems in space. In the absence of gravity, the evolved gas bubbles will clog the electrode and slow the reaction. He
Microgravity experiments and analysis of oscillatory thermocapillary flows in cylindrical containers
Publikováno v:
Journal of Fluid Mechanics. 410:211-233
Results are reported of thermocapillary flow experiments performed aboard the Spacelab. Oscillatory thermocapillary flows were investigated in open cylindrical containers filled with 2 cS kinematic viscosity (Prandtl number = 27 at 25 °C) silicone o
Publikováno v:
International Journal of Heat and Mass Transfer. 43:341-351
A numerical study of solutal convection in rotating shallow electrochemical cells is performed. Typical cases show complex interactions among the centrifugal, Coriolis forces and mass transfer process in the rotating cells, which depend on the Ek and
Publikováno v:
International Journal of Heat and Mass Transfer. 42:555-564
Oscillatory thermocapillary flow experiments were conducted in microgravity. Silicone oil was placed in cylindrical containers and heated at the center by a CO 2 laser beam. The main objectives were to determine the onset of oscillatory thermocapilla
Autor:
Simon Ostrach, Yasuhiro Kamotani
Publikováno v:
Journal of Heat Transfer. 120:758-764
Steady and oscillatory thermocapillary flows of high Prandtl number fluids in the half-zone configuration are analyzed theoretically. Scaling analysis is performed to determine the velocity and length scales of the basic steady flow. The predicted sc
Publikováno v:
Journal of Heat Transfer. 120:108-114
An experimental study is made of natural convection in gallium melts enclosed by vertical circular cylinders with localized circumferential heating. Heating is done in an axial band at the mid-height, and both ends of the cylinder are cooled. In the
Publikováno v:
Advances in Space Research. 22:1189-1195
Some temperature field results are reported of the thermocapillary flow experiments conducted on board the Space Shuttle. In the experiments oscillatory thermocapillary flows were investigated in cylindrical containers filled with silicone oil. Three
Publikováno v:
International Journal of Heat and Mass Transfer. 39:841-850
A detailed scaling analysis of transport phenomena by laminar natural convection along a vertical flat plate is made for multiple-component electrochemical systems. The convective flow is generated by both horizontal temperature and concentration gra
Publikováno v:
Journal of Heat Transfer. 118:191-197
Steady thermocapillary flows in cylindrical containers with unit aspect ratio (radius = depth) are studied numerically and by scaling analysis in order to investigate how the velocity and thermal fields are influenced by the method of heating. Two he