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examples/tree_2d_dgsem/elixir_acoustics_gauss_wall.jl

@@ -26,9 +26,10 @@ A Gaussian pulse, used in the `gauss_wall` example elixir in combination with
 [`boundary_condition_wall`](@ref). Uses the global mean values from `equations`.
 """
 function initial_condition_gauss_wall(x, t, equations::AcousticPerturbationEquations2D)
-    v1_prime = 0.0
-    v2_prime = 0.0
-    p_prime = exp(-log(2) * (x[1]^2 + (x[2] - 25)^2) / 25)
+    RealT = eltype(x)
+    v1_prime = 0
+    v2_prime = 0
+    p_prime = exp(-log(convert(RealT, 2)) * (x[1]^2 + (x[2] - 25)^2) / 25)
 
     prim = SVector(v1_prime, v2_prime, p_prime, global_mean_vars(equations)...)