Effect of Surface Roughness and Couple Stresses on Squeeze Films between Curved Annular Plates

<table>Variation of nondimensional squeeze time <svg height="11.6125" id="M153" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 22.3375 11.6125" width="22.3375" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> for different values of couple stress parameter <svg height="8.125" id="M155" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 8.3374996 8.125" width="8.3374996" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> for fixed values of  <svg height="15" id="M156" style="vertical-align:-2.22495pt" version="1.1" viewbox="0 0 63.3125 15" width="63.3125" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> and <svg height="11.75" id="M157" style="vertical-align:-0.23206pt" version="1.1" viewbox="0 0 51.724998 11.75" width="51.724998" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.4)"><path d="M682 629q-1 -16 -1.5 -72t-2.5 -86l-31 -4q-5 92 -51 129t-139 37q-100 0 -177 -49t-116 -125t-39 -162q0 -122 66 -201t182 -79q83 0 137 42.5t112 128.5l26 -15q-12 -31 -42.5 -88t-45.5 -75q-139 -27 -199 -27q-148 0 -243 81.5t-95 226.5q0 173 129.5 274.5
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</svg> for circumferential roughness pattern.</table>

International Scholarly Research Notices

fig11

Figure 11

Figure 11: Effect of Surface Roughness and Couple Stresses on Squeeze Films between Curved Annular Plates 