Drag Coefficient Calculator (Fluid)

Calculate drag force F_d = ½·Cd·ρ·A·V². Drag coefficients: sphere 0.47, cylinder 1.2, flat disc 1.17, streamlined body 0.04. Reynolds number effect on Cd, including drag crisis at Re ≈ 5×10⁵.

2D stress state at a point. All stresses in MPa.

σx — Normal Stress X (MPa)
σy — Normal Stress Y (MPa)
τxy — Shear Stress (MPa)
⚙ Mechanical Note: Results are based on standard textbook formulas and ISO/AASHTO references. Always verify critical designs with applicable codes (ISO 898, AASHTO 1993, AISC, Eurocode 3) and a qualified engineer.
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How to Use

Enter the values for the patient or scenario you are assessing. Calculate drag force F_d = ½·Cd·ρ·A·V². Drag coefficients: sphere 0.47, cylinder 1.2, flat disc 1.17, streamlined body 0.04. Reynolds number effect on Cd, including drag crisis at Re ≈ 5×10⁵. Use the fluid drag coefficient result to inform your clinical assessment.

Frequently Asked Questions