RESISTANCE OF RECTANGULAR 90-DEG ELBOW TYPE CONFLUENT-FLOW FITTINGS

model for confluent dynamic data - flow networks

We introduce a state-based language for programming dynamically changing networks which consist of processes that communicate asynchronously. For this language we introduce an operational semantics and a notion of observable which includes both partial correctness and absence of deadlock. Our main result is a compositional characterization of this notion of observable for a connuent sub-language.

Resistance Coefficients for Non-Newtonian Flows in Pipe Fittings

Numerical Simulation of Turbulent Subsonic Compressible Flow through Rectangular Microchannel

In this study, turbulent compressible gas flow in a rectangular micro-channel is numerically investigated. The gas flow assumed to be in the subsonic regime up to Mach number about 0.7. Five low and high Reynolds number RANS turbulence models are used for modeling the turbulent flow. Two types of mesh are generated depending on the employed turbulence model. The computations are performed for R...

Rectangular Scott-type Permanents

— Let x1, x2, . . . , xn be the zeroes of a polynomial P (x) of degree n and y1, y2, . . . , ym be the zeroes of another polynomial Q(y) of degree m. Our object of study is the permanent per(1/(xi − yj))1≤i≤n,1≤j≤m, here named “Scott-type” permanent, the case of P (x) = x − 1 and Q(y) = y + 1 having been considered by R. F. Scott. We present an efficient approach to determining explicit evaluat...

Mist/air Cooling in a Two-Pass Rectangular Rotating Channel with 45-deg Angled Rib Turbulators

Increasing the turbine inlet temperature can increase the gas turbine cycle efficiency. In order to increase the turbine inlet temperature significantly, an advanced cooling system has to be essentially developed. Injection of mist to the coolant fluid is considered a promising technique to protect the hot components such as combustor liners, combustor transition pieces, and turbine vanes and b...