161 KHRUSHCHOV 



Khristianovich's field of work is mechanics of liquids and 

 gases. In his monograph, "Irregular Movement in Canals and 

 Rivers" (1938) he solved the problem of spreading and re- 

 flection of waves and applied these results to hydrotechnical 

 structures. In plasticity, he solved the surface problem of the 

 determination of the tension arising in a plastic medium in 

 terms of the forces set in a closed contour. On the theory of 

 filtration, Khristianovich wrote in 1940 "The Movement of Sub- 

 soil Waters, Not Following the Darcy Law" and in 1941 "On the 

 Movement of Aerated Liquids in Porous Rocks." In aero- 

 dynamics, he studied the flow of gas at high subsonic speeds 

 around a profile in the presence of lifting force, and worked out 

 a method of calculating the effect of compressibility on the 

 characteristics of wing profiles. He carried out important 

 studies on the flow of gas at supersonic speed, and also in 

 aviation technology. 



As of 1961, Khristianovich was a Vice President of the Si- 

 berian Department of the U.S.S.R. Academy of Sciences, Di- 

 rector of the Institute of Theoretical and Applied Mechanics 

 (Novosibirsk), and a Member of the Presidium of the U.S.S.R. 

 Academy of Sciences. 

 Bibliography: 



The surface problem of the mathematical theory of plasticity 

 under external forces set in a closed contour. Mat. Sbornik, 

 New Series, 1936,1(43), #4. 



Flow of Gas Around Bodies at High Subsonic Speeds. Mos- 

 cow: 1940 (Works of the N. E. Zhukovskii Central Aero- 

 Hydrodynamic Institute, #481). 



On Supersonic Flow of Gas. Moscow: 1941 (Works of the 

 N. E. Zhukovskii Central Aero-Hydrodynamic Institute, 

 #543). 



and I. M. Yurevii. Flow around a wing profile at subcritical 

 speeds. Priklad. Mat. i Mekh., 1947, U, #1. 

 Approximate integration of equations of the supersonic flow 

 of gas. Priklad. Mat. i Mekh., 1947, 11, #2. 

 Office: Siberian Branch of USSR Academy of Sciences 



Novosibirsk, Siberia 



KHRUSHCHOV, GRIGORH K, (Deceased, December 22, 1962. ) 



G. K. Khrushchov was born March 3, 1897. He graduated in 

 1919 from Moscow University and until 1930 continued to work 

 there. From 1933 to 1945 he was professor at the Moscow 

 Animal- Veterinary Institute. In 1939-1949 he was Director of 

 the Institute of Cytology, Histology and Embryology. Krushchov 



