A Forced Burgers Turbulence in the Inviscid Limit

概要

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The equilibrium properties in the inviscid limit of the Burgers turbulence drivenby a random external force are studied numerically. The numerical calculation isperformed tcv use or the method or characteristics supplemented b7 the dynamicsof shock-fronts, which is more accurate and effective than the finite differencemethods. Energy is supplied to the largest-scale motion of the velocity field bythe external force. The existence of the equilibrium state of the velocity field isconfirmed and the equilibrium values of various statistical quantities, such as thenumber of shock-fronts, the energy of the velocity field, the velocity correlationfunction and the energy spectrum function, are obtained. The k =" energy spectralform is observed throughout beyond the characteristic wavenumber of theexternal force.
社団法人日本物理学会の論文
1981-05-15