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Registration Number

0215U004253, 0114U003766 , R & D reports

Title

Investigation of hydrodynamic flows that occur in microgravity, and management capabilities of these trends and the free surface of the liquid by means of vibration, acoustic and pulse methods. Stage II "Development of mathematical models of hydrodynamic flow in microgravity based on vibration and pulse effects in the presence of magnetic fields"

Head

Ladikov-Roev Yu.P.,

Registration Date

18-02-2015

Organization

Space Research Institute of National Academy of Sciences of Ukraine and State Space Agency of Ukraine

Description

Research report "Investigation of hydrodynamic flows that occur in microgravity, and management capabilities of these trends and the free surface of the liquid by means of vibration, acoustic and pulse methods. Stage II "Development of mathematical models of hydrodynamic flow in microgravity based on vibration and pulse effects in the presence of magnetic fields", 43 p.,, 9. fig., 6 tab. , 24 ref. The influence of uniform vibration on the stability of crystallization front in prizmatical ampule under microgravitation conditions is considered. The vertical and horizontal vibrations are studied. It is established that horizontal vibration causes curving of the crystallization front that results in worsening of crystal quality. Vertical vibration induces agitating of melt and under certain conditions may improve crystal characteristics. Model of non-stationary spicule is proposed. In a framework of the model various scenarios of behavior spicules are revealed and analyzed. It is noted that these scenarios are in qualitative agreement with the observed behavior of the spicules.

Product Description

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Ладіков-Роєв Юрій Павлович
Логінов Олексій Олексійович
Маслова Н.В.
Черемних О.К.