def area_orifice(Height, RatioVCOrifice, FlowRate):
    """Return the area of the orifice."""
    #Checking input validity
    ut.check_range([Height, ">0", "Height"], [FlowRate, ">0", "Flow rate"],
                   [RatioVCOrifice, "0-1, >0", "VC orifice ratio"])
    return FlowRate / (RatioVCOrifice * np.sqrt(2 * gravity.magnitude * Height))
Return the area of the orifice.