This investigation completed the verification of a three-dimensional resin transfer molding/resin film infusion (RTM/RFI) process simulation model. The model incorporates resin flow through an anisotropic carbon fiber preform, cure kinetics of the resin, and heat transfer within the preform/tool assembly. The computer model can predict the flow front location, resin pressure distribution, and t...

A variational principle for the Upper Convected Maxwell model is presented. The stationary value of appropriate functional drag on an immersed object. From principle, a formula derived derivative with respect to Deborah number arbitrarily shaped particle in circular duct under creeping flow conditions. formalism compared conventional reciprocal theorem. Whereas theorem gives as volume integral ...

The mass transfer of a rising bubble in creeping flow regime is numerically investigated. A reversible oxidation-reduction reaction taken into account. Two coupled equations are needed to study the oxygen and reduced species transport. Three dimensionless numbers involved: Péclet Damköhler ratio diffusion coefficient oxygen. Numerical computations applied soda-lime-silica borosilicate glass-for...

Abstract The objective of this paper was to review the reproductive biology, herbicide-resistant (HR) biotypes, pollen-mediated gene flow (PMGF), and potential for transfer alleles from HR herbicide-susceptible grass weeds including barnyardgrass, creeping bentgrass, Italian ryegrass, johnsongrass, rigid (annual) wild oats. widespread occurrence is at least partly due PMGF, particularly in obli...