THE DEPENDENCE OF THE DISSIPATION ON ROTATION

A form of the evolution equation for the dissipation showing the effec ts of rotation is derived directly from the Navier-Stokes equations. R otation affects the dissipation if the flow is inhomogeneous or compre ssible. This is due to the fact that pressure scales with inverse Ross by number and certain pressure correlations usually neglected have to be retained when Re Ro almost-equal-to 1. The term reflecting the effe cts of rotation on the dissipation is a volume integral of the two-poi nt velocity correlation similar in structure to the ''rapid-pressure'' correlation appearing in the second-moment equations. Some of its pro perties are indicated.