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Using the CFD results, a polynomial function is fitted to the dependence of an effective force coefficient for all blades on the rotational angle and the flow coefficient.
It can be written as: (2 where C a represents the force coefficient vector, and m the mass of the satellite.
The contact between the fretting surfaces makes the asperities interlock with each other at low applied normal loads, and results in a high tangential force coefficient, whereas at high applied normal loads tangential force coefficient decreases.
Based on the energy-minimization multi-scale (EMMS) model, a revised drag force coefficient expression was coupled with the two-fluid model (TFM) and the kinetic theory of granular method (KTGF) to investigate the hydrodynamic characteristics of the loop seal and standpipe in a CFB.
The present article proposes a model of wind force coefficient for designing open-topped storage tanks in various arrangements; main focus is on oil storage tanks.
Finally, based on the results obtained, we propose a model of wind force coefficient on tanks in various arrangements by modifying the model for isolated tanks that we proposed in our previous paper.
With force coefficient results, a loading scheme was developed for a prototype oyster grow out structure by applying Stoke's second order wave theory and the Morison equation.
The experimental results show a significant reduction in cutting force, feed force, coefficient of friction, and surface roughness for MQCF.
a Imbibition capacity normalized by porosity; b Driving force coefficient.
a Imbibition capacity normalized by porosity; b Driving force coefficient Open image in new window Fig. 10 Imbibition capacity normalized by porosity and driving force coefficient versus I/S concentration.
The research conclusions can provide a reference for the differences of the drag force coefficient measured by the global force and pressure distribution methods for engineering practice.
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