Take a cylinder in cross flow. We know that for Reynolds number greater than 40, we will start to see vortex shedding occur. Using the Strouhal number, we can determine the frequency at which vortices will shed. Using the coefficients of drag and lift, we can determine the steady loadings on the cylinder due to the flow. I am interested in finding or approximating the unsteady loading on the cylinder. Vortex shedding will cause a pressure drop across the cylinder, but are we able to calculate that drop? I cannot seem to find any literature on this specific question. I would like to gain some intuition as to how the drag and lift loadings fluctuate due to shedding. If anyone has any experience or knows of any good literature, that would be great.