Patent ID: 11868690
Assignee: PEARL RIVER WATER RESOURCES RESEARCH INSTITUTE
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 3:
4. The method for analyzing the disaster prevention and mitigation effectiveness of the ecological seawall according to claim 1, wherein the calculating the suspended load sediment transportation volume by using the preset convection-diffusion equation comprises:
obtaining a sediment carrying volume and a water flow velocity in a water flow movement process;
calculating a sediment mass concentration in the water flow movement process by using the convection-diffusion equation according to the sediment carrying volume and the water flow velocity:, ∂
     
      B
      A
     
    
    
     ∂
     τ
    
   
   +
   
    
     u
     x
    
    ⁢
    
     
      ∂
      
       B
       A
      
     
     
      ∂
      x
     
    
   
   +
   
    
     u
     y
    
    ⁢
    
     
      ∂
      
       B
       A
      
     
     
      ∂
      y
     
    
   
   +
   
    
     u
     Z
    
    ⁢
    
     
      ∂
      
       B
       A
      
     
     
      ∂
      z
     
    
   
  
  =
  
   
    (
    
     
      
       
        ∂
        2
       
       
        B
        A
       
      
      
       ∂
       
        x
        2
       
      
     
     +
     
      
       
        ∂
        2
       
       
        B
        A
       
      
      
       ∂
       
        y
        2
       
      
     
     +
     
      
       
        ∂
        2
       
       
        B
        A
       
      
      
       ∂
       
        z
        2
       
      
     
    
    )
   
   +
   
    r
    A
   
  
 

wherein rA represents the sediment carrying volume, BA represents the sediment mass concentration, τ represents a water flow time, ux represents a water flow velocity in a direction of x, uy represents a water flow velocity in a direction of y, uZ represents a water flow velocity in a direction of z, and ∂ represents a partial derivative function; and
determining the suspended load sediment transportation volume according to the sediment mass concentration.