Flow numerical simulation method, device, equipment and medium

The invention discloses a flow numerical simulation method and device, equipment and a medium, and relates to the field of computational fluid mechanics research, and the method comprises the steps: determining a current flow field value of each calculation unit in a current flow field; the current flow field value of each calculation unit in the current flow field is used for carrying out forward scanning updating of the current round to obtain a temporary flow field value of each calculation unit, and the temporary flow field value of each calculation unit is used for carrying out reverse scanning updating of the current round to obtain the current flow field value of each calculation unit after the current round is updated and the current flow field after the current round is updated; and judging whether a preset iteration stop condition is met or not, if not, starting a next round of iteration so as to jump to the step of performing forward scanning updating of the current round by using the current flow