Comparison of 2D and 3D models of flow structure in semidetached binaries

A.A.Boyarchuk (1); D.Molteni (3) ((1) Institute of Astronomy of Russ. Acad. Sci.; D.V.Bisikalo (1); Moscow; (2) Keldysh Institute of Applied Mathematics; Moscow; (3) Dipartimento di Scienze Fisiche ed Astronomiche; O.A.Kuznetsov (2); Universita di Palermo); V.M.Chechetkin (2)

arxiv: astro-ph/9907084 · v1 · submitted 1999-07-07 · 🌌 astro-ph

Comparison of 2D and 3D models of flow structure in semidetached binaries

D.V.Bisikalo (1) , A.A.Boyarchuk (1) , V.M.Chechetkin (2) , O.A.Kuznetsov (2) , D.Molteni (3) ((1) Institute of Astronomy of Russ. Acad. Sci. , Moscow; (2) Keldysh Institute of Applied Mathematics , Moscow; (3) Dipartimento di Scienze Fisiche ed Astronomiche , Universita di Palermo) This is my paper

classification 🌌 astro-ph

keywords gammacasemodelsnumericalbinariescomparisonflowobtained

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We present the results of systematic comparison of 2D and 3D numerical models of mass transfer in semidetached binaries. It is shown that only for case of \gamma \sim 1 (near-isothermal case) the obtained 2D and 3D solutions are qualitatively similar. For higher value of \gamma the 3D flow structure is drastically changed and for \gamma=1.2 the accretion disk is not formed in the system. Numerical results show that for case of \gamma=1.2 the 2D and 3D solutions are different. We discuss the spiral-shaped shock waves obtained in numerical models. It is shown that these shocks are not intrinsic spirals and are caused by collisions of the gaseous flows in the system.

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Comparison of 2D and 3D models of flow structure in semidetached binaries

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