Frisbee Modelling in Javascript

frisbee.js

function frisbee () 
{    
    //everything in SI units        
    var g = -9.81, //deceleration due to gravity
        m = 0.175, //mass - change as needed
        RHO = 1.23, //density of air
        AREA = 0.0568, //area for the frisbee - change as needed
        CL0 = 0.1, //lift coefficient parameters
        CLA = 1.4,
        CD0 = 0.08, //drag coefficient parameters
        CDA = 2.72,
        ALPHA0 = -4,
        x = 0;

    //things you can mess with
    var y = 1, //height from which you throw the frisbee
        vx = 15, //horizontal force when throwing
        vy = 5, //vertical force when throwing
        deltaT = 0.002, //time split
        angleAttack = 3, //angle at which the surface of frisbee meets the air flow
        outCSV, //use as necessary based on browser
        cl = CL0 + CLA*angleAttack*(Math.PI/180), //lift
        cd = CD0 + CDA*(Math.pow(((angleAttack-ALPHA0)*Math.PI/180),2)); //drag

    var k = 0;    
    while(y>0)    
    {        
        var deltavy = (RHO*Math.pow(vx,2)*AREA*cl/2/m+g)*deltaT;        
        var deltavx = -RHO*Math.pow(vx,2)*AREA*cd*deltaT;        
        vx = vx + deltavx;        
        vy = vy + deltavy;        
        x = x + vx*deltaT;        
        y = y + vy*deltaT;
        //increase or decrease data points as necessary
        if(k%10 == 0)        
        {            
            console.log( x + ',' + y);            
            //outCSV = outCSV + ',' + x + ',' + y;            
        }        
        k++;    
    }    
    //alert(outCSV);
}
frisbee();