This circuit consists in a full-wave bridge rectifier or Graetz Bridge as its is also called. The output filter is a 10 µF capacitor and the load a 1 k ohm resistor. Less ripple can be obtained with larger capacitors. Try in your simulation with the MultiSIM BLUE.
Wave shape displayed by the virtual oscilloscope of the MultiSIM BLUE is shown by figure 2. Observe the adjustment for this instrument.