implement suggestions

docs/src/systems/entropically_damped_sph.md

@@ -109,7 +109,7 @@ Here, ``\tilde{p}_{ab}`` is the density-weighted pressure
 \tilde{p}_{ab} = \frac{\rho_b p_a + \rho_a p_b}{\rho_a + \rho_b},
 ```
 
-with the density  ``\rho_a``,  ``\rho_b`` and the pressure  ``p_a``,  ``p_b`` of particles ``a`` and ``b`` respectively. ``\bm{A}_a`` and ``\bm{A}_b`` are the convection tensors for particle ``a`` and ``b`` respectively and is given, e.g. for particle ``a``, as ``\bm{A}_a = \rho v_a\left(\tilde{v}_a-v_a\right)^T``.
+with the density  ``\rho_a``,  ``\rho_b`` and the pressure  ``p_a``,  ``p_b`` of particles ``a`` and ``b`` respectively. ``\bm{A}_a`` and ``\bm{A}_b`` are the convection tensors for particle ``a`` and ``b`` respectively and are given, e.g. for particle ``a``, as ``\bm{A}_a = \rho v_a\left(\tilde{v}_a-v_a\right)^T``.
 
 ```@autodocs
 Modules = [TrixiParticles]

src/schemes/fluid/entropically_damped_sph/system.jl

@@ -246,11 +246,9 @@ function update_average_pressure!(system, ::TransportVelocityAdami, v_ode, u_ode
         end
     end
 
-    for particle in eachparticle(system)
-        if neighbor_counter[particle] > 0
-            pressure_average[particle] /= neighbor_counter[particle]
-        end
-    end
+    pressure_average ./= neighbor_counter
+
+    return system
 end
 
 function write_v0!(v0, system::EntropicallyDampedSPHSystem, ::SummationDensity)

src/schemes/fluid/transport_velocity.jl

@@ -13,11 +13,8 @@ See [TVF](@ref transport_velocity_formulation) for more details of the method.
     Thus, it is highly recommended to use [`ViscosityAdami`](@ref) as viscosity model,
     since [`ArtificialViscosityMonaghan`](@ref) leads to bad results.
 """
-struct TransportVelocityAdami{ELTYPE}
-    background_pressure::ELTYPE
-    function TransportVelocityAdami(background_pressure::Real)
-        new{typeof(background_pressure)}(background_pressure)
-    end
+struct TransportVelocityAdami{T<:Real}
+    background_pressure::T
 end
 
 # Calculate `v_nvariables` appropriately