Pressure drag
= Pressure drag
<Pressure drag> is the component of force produced by integrating <pressure> over a body's surface. For flow over topography $z=h(x)$, the horizontal force on the <fluid> is $-\overline{p h_x}$ to leading order.
= Pressure drag
<Pressure drag> is the component of force produced by integrating <pressure> over a body's surface. For flow over topography $z=h(x)$, the horizontal force on the <fluid> is $-\overline{p h_x}$ to leading order.