Test of CCHE2D-Coast A Hypothetical Hurricane in the Mississippi/Louisiana Gulf Coast

Test of CCHE2D-CoastA Hypothetical Hurricane in the Mississippi/Louisiana Gulf CoastYan DingNCCHE, University of Mississippi, 6/4/2011Computational Conditions for Modeling Storm-Surge Tide

Hypothetical Hurricane: Central Pressure = 970 mbar, Max. Radius = 50km, Moving speed = 25km/h, Direction = from SE to NWTide: M2, Tidal Amplitude = 0.2m TideHurricaneSurface Wind by Hollands Hurricane Model

Air Pressure at t = 36h

Storm Surge Height and Wind

t = 36ht = 38hStorm Surge Height and Current

t = 36ht = 38hA Hurricane Model (Holland 1980)

r

Hurricane Pressure FieldSurface Wind VelocityResultant Wind SpeedWind StressPc=central pressure; P=ambient pressure; a =air densityR=Radius of maximum wind; Cd = drag coefficientVHVW