Add two more talk titles

Author: sloede

website/program.qmd

@@ -57,7 +57,7 @@ This schedule is a preliminary outline and subject to change. Session contents,
 | Time  | Program |
 |-------|---------|
 | 08:30 | *Welcome coffee* |
-| 09:00 | <span class="slot plenary">*Plenary talk (Chair: Jesse Chan)*<br><br>**TBD**<br>Valentin Churavy</span> |
+| 09:00 | <span class="slot plenary">*Plenary talk (Chair: Jesse Chan)*<br><br>**Performance Analysis with Julia for Trixi.jl**<br>Valentin Churavy</span> |
 | 10:30 | *Coffee break* |
 | 11:00 | <span class="slot contributed">*Contributed talks (Chair: Andrés Rueda-Ramírez)*<br><br>**Extending Trixi.jl to PDEs on manifolds**<br>Tristan Montoya<br><br>**IMEX-like temporal integration schemes for numerical weather prediction**<br>Oswald Knoth<br><br>**Structure-preserving methods for atmospheric flows**<br>Marco Artiano</span> |
 | 12:30 | *Lunch break* |
@@ -75,7 +75,7 @@ This schedule is a preliminary outline and subject to change. Session contents,
 | 08:30 | *Welcome coffee* |
 | 09:00 | <span class="slot plenary">*Plenary talk (Chair: Gregor Gassner)*<br><br>**WIAS-PDELib.jl: a framework for solving elliptic and parabolic systems of PDEs using FEM and FVM discretization methods**<br>Jürgen Fuhrmann</span> |
 | 10:30 | *Coffee break* |
-| 11:00 | <span class="slot contributed">*Contributed talks (Chair: Hendrik Ranocha)*<br><br>**Multiphysics Coupling with Trixi.jl**<br>Simon Candelaresi<br><br>**TBD**<br>Vivienne Ehlert<br><br>**TBD**<br>Erik Faulhaber, Niklas Neher</span> |
+| 11:00 | <span class="slot contributed">*Contributed talks (Chair: Hendrik Ranocha)*<br><br>**Multiphysics Coupling with Trixi.jl**<br>Simon Candelaresi<br><br>**TBD**<br>Vivienne Ehlert<br><br>**Blood, Blades, and Bends: Fluid-Structure Interaction with SPH on GPUs**<br>Erik Faulhaber, Niklas Neher</span> |
 | 12:30 | *Lunch break* |
 | 14:00 | <span class="slot handson">*Hands-on session*<br><br>**TrixiParticles.jl**<br>Sven Berger, Erik Faulhaber, Niklas Neher</span> |
 | 15:30 | *Coffee break* |