From f557343838a8f6ca28e264a5a467d2b20af1cead Mon Sep 17 00:00:00 2001
From: Matthieu Schaller <matthieu.schaller@durham.ac.uk>
Date: Mon, 22 May 2017 18:00:06 +0200
Subject: [PATCH] Correctly initialise the signal velocity of the SPH particles
 in the Minimal and Pressure-Entropy cases.

---
 src/hydro/Minimal/hydro.h         | 2 +-
 src/hydro/PressureEntropy/hydro.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/hydro/Minimal/hydro.h b/src/hydro/Minimal/hydro.h
index fd05b768b2..8f216a550a 100644
--- a/src/hydro/Minimal/hydro.h
+++ b/src/hydro/Minimal/hydro.h
@@ -279,7 +279,7 @@ __attribute__((always_inline)) INLINE static void hydro_reset_acceleration(
   /* Reset the time derivatives. */
   p->u_dt = 0.0f;
   p->force.h_dt = 0.0f;
-  p->force.v_sig = p->force.soundspeed;
+  p->force.v_sig = 0.0f;
 }
 
 /**
diff --git a/src/hydro/PressureEntropy/hydro.h b/src/hydro/PressureEntropy/hydro.h
index 90190b223a..4c4868cd37 100644
--- a/src/hydro/PressureEntropy/hydro.h
+++ b/src/hydro/PressureEntropy/hydro.h
@@ -308,7 +308,7 @@ __attribute__((always_inline)) INLINE static void hydro_reset_acceleration(
   p->force.h_dt = 0.0f;
 
   /* Reset maximal signal velocity */
-  p->force.v_sig = p->force.soundspeed;
+  p->force.v_sig = 0.0f;
 }
 
 /**
-- 
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