public void TestPhysicalRocket()
{
double burnArea = .0030;
double burnDepth = .06;
double burnVolume = burnArea * burnDepth;
double fuelMass = burnVolume * FUEL_DENSITY;
double totalMass = fuelMass * 1.1;
double burnRate = .020;
PhysicalRocket r = new PhysicalRocket(burnArea, burnRate, fuelMass, totalMass);
double bt = burnDepth / burnRate;
double tol = 0.01;
Assert.AreEqual(bt, r.GetBurnTime(), tol, "check burn time");
Assert.AreEqual(totalMass, r.GetMass(0), tol, "initial mass");
Assert.AreEqual(totalMass - fuelMass, r.GetMass(bt), tol, "burnt out mass");
Assert.AreEqual(totalMass - fuelMass * .5, r.GetMass(bt / 2), tol, "half mass");
Assert.AreEqual(SPECIFIC_IMPULSE * FUEL_DENSITY * burnArea * burnRate, r.GetThrust(bt / 2), tol, "thrust");
}
public void TestPhysicalRocket()
{
double burnArea = .0030;
double burnDepth = .06;
double burnVolume = burnArea * burnDepth;
double fuelMass = burnVolume * FUEL_DENSITY;
double totalMass = fuelMass * 1.1;
double burnRate = .020;
PhysicalRocket r = new PhysicalRocket(burnArea, burnRate, fuelMass, totalMass);
double bt = burnDepth / burnRate;
double tol = 0.01;
Assertion.AssertEquals("sprawdzenie czasu spalania", bt, r.GetBurnTime(), tol);
Assertion.AssertEquals("masa pocz¹tkowa", totalMass, r.GetMass(0), tol);
Assertion.AssertEquals("masa wypalona", totalMass - fuelMass, r.GetMass(bt), tol);
Assertion.AssertEquals("po³owa masy", totalMass - fuelMass * .5, r.GetMass(bt / 2), tol);
Assertion.AssertEquals("ci¹g", SPECIFIC_IMPULSE * FUEL_DENSITY * burnArea * burnRate, r.GetThrust(bt / 2), tol);
}