diff --git a/doc/computation/fluid.rst b/doc/computation/fluid.rst index bec587a4..8b049b43 100644 --- a/doc/computation/fluid.rst +++ b/doc/computation/fluid.rst @@ -424,7 +424,7 @@ increasing Reynolds numbers, and a single reference area :math:`A_D` may not be drag for highly irregular or slender bodies. For example, experimental fits are derived from problems ranging from falling playing cards :cite:p:`wang2004,andersen2005a,andersen2005b` to particle transport :cite:p:`loth2008, bagheri2016`. See screen capture of the -`cards.xml `__ model on the right. +`cards.xml `__ model on the right. We derive a formula for :math:`\mathbf{f}_\text{D}` based on two surfaces :math:`A^\text{proj}_\mathbf{v}` and :math:`A_\text{max}`. The first, :math:`A^\text{proj}_\mathbf{v}`, is the cylindrical projection of the body onto a