more debugging of water rocket cases.

.github/workflows/dymos_tests_workflow.yml

@@ -445,7 +445,7 @@ jobs:
           if [[ "${{ matrix.NAME }}" != "latest" ]]; then
             testflo dymos -n 4 --pre_announce --show_skipped --durations 20 --coverage --coverpkg dymos
           else
-            testflo dymos -n 4 --pre_announce --show_skipped --durations 20
+            testflo dymos -n 4 --pre_announce --show_skipped --durations 20 -s
           fi
       - name: Submit coverage
         if: github.event_name != 'workflow_dispatch'

dymos/examples/water_rocket/phases.py

@@ -94,7 +94,7 @@ def new_descent_phase(transcription):
 
 
 def new_water_rocket_trajectory(objective):
-    tx_prop = dm.Radau(num_segments=50, order=3, compressed=True)
+    tx_prop = dm.Radau(num_segments=10, order=3, compressed=True)
     tx_bal = dm.Radau(num_segments=10, order=3, compressed=True)
     tx_desc = dm.Radau(num_segments=10, order=3, compressed=True)
     traj = dm.Trajectory()

dymos/examples/water_rocket/test/test_water_rocket.py

@@ -18,7 +18,7 @@
 
 
 @require_pyoptsparse(optimizer='IPOPT')
-@use_tempdirs
+# @use_tempdirs
 class TestWaterRocketForDocs(unittest.TestCase):
 
     @unittest.skipIf(mpl is None, "This test requires matplotlib")
@@ -30,11 +30,8 @@ def test_water_rocket_height_for_docs(self):
         traj = p.model.add_subsystem('traj', traj)
 
         p.driver = om.pyOptSparseDriver(optimizer='IPOPT', print_results=False)
-        p.driver.opt_settings['mu_init'] = 1e-3
+        p.driver.opt_settings['print_level'] = 5
         p.driver.opt_settings['max_iter'] = 500
-        p.driver.opt_settings['print_level'] = 0
-        p.driver.opt_settings['nlp_scaling_method'] = 'gradient-based'  # for faster convergence
-        p.driver.opt_settings['alpha_for_y'] = 'safer-min-dual-infeas'
         p.driver.opt_settings['mu_strategy'] = 'monotone'
         p.driver.declare_coloring(tol=1.0E-12)
 
@@ -44,7 +41,8 @@ def test_water_rocket_height_for_docs(self):
         p.setup()
         set_sane_initial_guesses(phases)
 
-        dm.run_problem(p, run_driver=True, simulate=True)
+        dm.run_problem(p, run_driver=True, simulate=True, make_plots=True)
+        print(p.get_outputs_dir())
 
         summary = summarize_results(p)
         for key, entry in summary.items():
@@ -57,7 +55,7 @@ def test_water_rocket_height_for_docs(self):
         plot_trajectory(p, exp_out)
         plot_states(p, exp_out)
 
-        # plt.show()
+        plt.show()
 
         # Check results (tolerance is relative unless value is zero)
         assert_near_equal(summary['Launch angle'].value, 85, 0.01)
@@ -73,11 +71,8 @@ def test_water_rocket_range_for_docs(self):
         traj = p.model.add_subsystem('traj', traj)
 
         p.driver = om.pyOptSparseDriver(optimizer='IPOPT')
-        p.driver.opt_settings['mu_init'] = 1e-3
-        p.driver.opt_settings['max_iter'] = 500
-        p.driver.opt_settings['print_level'] = 0
-        p.driver.opt_settings['nlp_scaling_method'] = 'gradient-based'  # for faster convergence
-        p.driver.opt_settings['alpha_for_y'] = 'safer-min-dual-infeas'
+        p.driver.opt_settings['print_level'] = 5
+        p.driver.opt_settings['max_iter'] = 300
         p.driver.opt_settings['mu_strategy'] = 'monotone'
         p.driver.declare_coloring(tol=1.0E-12)
 

dymos/examples/water_rocket/water_engine_comp.py

@@ -34,6 +34,9 @@ def setup(self):
                            subsys=_WaterThrust(num_nodes=nn),
                            promotes=['rho_w', 'A_out', 'F'])
 
+        self.set_input_defaults('A_out', val=np.pi*13e-3**2/4*np.ones(nn))
+        self.set_input_defaults('p', val=6.5e5*np.ones(nn))
+
         self.connect('water_exhaust_speed.v_out', 'water_flow_rate.v_out')
         self.connect('water_exhaust_speed.v_out', 'water_thrust.v_out')
 
@@ -187,5 +190,4 @@ def compute_partials(self, inputs, partials):
     p = om.Problem()
     p.model = WaterEngine(num_nodes=1)
     p.setup()
-    p.check_config(checks=['unconnected_inputs'], out_file=None)
     p.final_setup()

dymos/phase/phase.py

@@ -1912,7 +1912,6 @@ def set_time_val(self, initial=None, duration=None, units=None):
         units : str or None
             Units of the time. If none are specified, the default units are used.
         """
-        print(f'Setting times {self.pathname=} {initial=} {duration=}')
         if units is None:
             units = self.time_options['units']
         if initial is not None: