A numerical solution for the outflow of heat from a cylindrical clutch type of device is used to show the effects of the various significant dimensions, fluid characteristics, and running arrangements for unexcited operation. In the first instance the fluid is considered to be isothermal and in the second the radial temperature distribution across it is calculated. In this second case the average temperature of the film flow is now established and the effect of the various parameters examined with the whole film viscosity taken at this average temperature.
Results are verified from experimental data acquired from a single acting clutch using two fluids and speeds.
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References
1.
Atkin, R. , X. Shi and W. A. Bullough. 1991. "Solutions of the Constitutive Equations for the Flow of an Electro-Rheological Fluid in Radial Configurations", Proc. Soc. Rheology, Jnl., pp. 1441-1461.
2.
Brooks, D.1992. 'Applications of Simple Expressions for Design with ER Fluids", Proc. Conf Recent Advances in Adaptive and Sensory Materials and Their Applications, Blacksburg, VA. Lancaster, PA: Technomic Publishing Co. Inc., pp. 524-536.
3.
Johnson, A. R. , J. Makin and W. A. Bullough. 1993. "E. R. Catch/Clutch Simulations", Proceedings of 4th International Conference on Electro-Rheological Fluids, July 20-23, Feldkirch, Austria, World Soc. Publ. Co., pp. 493-515.
4.
Johnson, A. R. , M. Makin and W. A. Bullough. 1994. "Control Indications for an Inertial Drive Clutch Using Electro-Structured Fluids under Cyclic Operation", Proceedings of 2nd International Conference on Intelligent Materials, Williamsburg, VA, June 5-8, Lancaster, PA: Technomic Publishing Co., Inc., pp. 686-698.
5.
Smyth, R. , K. H. Tan and W. A. Bullough. 1993. "Heat Transfer Modelling of an ER Catch", Proceedings of 4th International Conference on Electro-Rheological Fluids, July 20-23, Feldkirch, Austria, World Soc. Publ. Co., pp. 657-675.
6.
Whittle, M. , W. A. Bullough, D. J. Peel and R. Firoozian. 1994. "Electro-Rheological Dynamics Derived from Pressure Experiments in the Flow Mode", submitted to Jnl. Non Newtonian Fluids.
7.
Wong, H. Y.1977. Heat Transfer for Engineers. Longmans.
