lfom_prefab_functional.py 文件源码

def n_lfom_rows(FLOW,HL_LFOM):
    """This equation states that the open area corresponding to one row can be
    set equal to two orifices of diameter=row height. If there are more than 
    two orifices per row at the top of the LFOM then there are more orifices 
    than are convenient to drill and more than necessary for good accuracy. 
    Thus this relationship can be used to increase the spacing between the 
    rows and thus increase the diameter of the orifices. This spacing function 
    also sets the lower depth on the high flow rate LFOM with no accurate 
    flows below a depth equal to the first row height.

    But it might be better to always set then number of rows to 10.
    The challenge is to figure out a reasonable system of constraints that
    reliably returns a valid solution.
    """
    N_estimated = (HL_LFOM*np.pi/(2*width_stout(HL_LFOM,HL_LFOM)*FLOW))
    #variablerow=min(10,max(4,math.trunc(N_estimated.magnitude)))
    return 10