Apply a delay to the first input signal. If the delay type is variable time delay, the second input specifies the delay time To. The block implements the function y=u(t-To(t)). If the delay type is variable transport delay, the second input specifies the instantaneous delay time Ti at the input. The block can be used to simulate the variable transport delay phenomenon such as incompressible liquid flow in a pipe. Best accuracy is achieved when the delay is larger than the simulation step size

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