The Coplanar Waveguide Incentive To Emf Numerical Simulation Of The Direct Force Of The Rudder Control

With the developing of the aviation, aerospace and marine technology,we proposes higher requirements to the performance of aircrafts and the modern flight control technology. Direct power control technology is an advanced active control technology,it can improve the stability, guidance accuracy and mobility of the aircraft. So researching on the direct power control technology is of great significance.This paper researches on the effects of the electromagnetic force with the electromagnetic field excited on the surface of the CPW produces the direct force on the rudder body.Basing on the basic theory of the electromagnetic controls of the fluid.This paper mainly simulates and analysises the following two aspects:1. The law to the distribution of the electromagnetic field excited by the CPW:When the electromagnetic force with the electromagnetic field excited on the surface of the CPW produces direct force on the rudder body, the distribution of the electromagnetic field must meet the basic theory of the electromagnetic controls of the fluid. The transmission of the electromagnetic waves in the CPW must in the quasi-TEM mode.This paper simulates and analysises the distribution of the electromagnetic field on the surface of the CPW with different frequencies and different boundary conditions,the conclusion is as follows:With the frequency of the microwave emission source's increasing, the mode of the electromagnetic waves in the CPW starts transition from the quasi-TEM mode to higher mode gradually,so we must keep the frequency of microwave emission source under a certain frequency point. Generally we take 3 GHz as the maximum frequency.The boundary conditions around the CPW has a great impact to the the distribution of the electromagnetic field.The higher the dielectric constant of the boundary conditions is, the worse the effect of the electromagnetic force control,so we must reduce the dielectric constant of the boundary conditions in this scenario. When the boundary condition is the water sea,we need to generate bubble on the surface of the rudder body; When the boundary condition is the air, in order to improve the electrical conductivity of the boundary condition,we need to mix cesium powder to the air on the surface of the rudder body.2. The law to the electromagnetic force and the lift of the rudder body excited by the electromagnetic force:After gainning the distribution of the electromagnetic field on the surface of the CPW,this paper simulats and analysises the distribution of the electromagnetic force on the surface of the rudder body,and puts the electromagnetic force into the N-S control equations, numerically simulates the effects of the electromagnetic force excited in this way to the flow rate, pressure and lift of the boundary layer flow around the rudder body, the conclusion is as follows:The velocity of the fluid around the rudder body increases by the effects of the electromagnetic force,with the angle of attack's increasing, under the effects of the electromagnetic force,the pressure under the surface is larger,and the pressure on the surface is smaller,the difference of the pressure is larger.Finally it makes the lift of the rudder body increasing, realizes the direct force control to the rudder body by the electromagnetic force.