Advanced mud transport modelling

Study the impact of siltation on coastal morphology and water quality using this combined multi-fraction and multi-layer software designed to simulate erosion, transport, settling and deposition of mud or sand/mud mixtures.

Why MIKE 21/3 Mud Transport?

Model the transport of mud and the interaction between mud and the bed

Simulate the erosion, transport, settling and deposition of cohesive sediment in marine, brackish and freshwater areas using this state-of-the-art mud transport model. Take fine-grained cohesive material into account. Perform simulations that consider forcing by waves, salt-flocculation, the settling process, layered description of the bed and morphological update of the bed.


Simulating sediment plume dispersion and performance of the silt curtains carried out by Anse du Portier & Bouygues TP in Anse du Portier ‘s extension project.

Simulate all stages of the dredging process

Visualise the impact of spilled material from dredging activities on increased suspended sediment concentrations as well as morphological changes. Study the spreading and behaviour of sediment spill determined by geotechnics, sediment properties, dredging methodology, hydrodynamics and sediment transport with the built-in dredging module.

Model suspended transport of fine grained non-cohesive sediment

Even though the Mud Transport module is designed to calculate cohesive sediment, you can activate sand transport formulations. This task can be performed in cases where a certain percentage of the bed material is in the fine sand fraction that may be transported both in suspension and as bed load.



Estimate siltation rates to support port design

Accurately estimate siltation rates to best design a new approach channel or deepen existing channels. Optimise design for improved navigation and maneuverability. Reduce the need for maintenance dredging.

Gather key insight to advance your industry

Port Design

Investigate changes in sedimentation patterns and dredging requirements. Analyse the impact of siltation in harbours and access channels.


Study the spreading, dispersion and fate of dredged material to optimise dredging operations.

Coastal Engineering

Study cohesive sediment dynamics and morphology such as erosion under combined waves and currents.

Water Quality

Understand the impact of contaminated sediments deposited in ecologically sensitive areas on local flora and fauna.

No in-house modellers?

DHI offers comprehensive modelling and consulting services to support impact assessments of cohesive sediments on coastal and estuarine environments.

Additional capabilities & unique features

In suspension, fine grained sediment may shadow areas over a time span, which can be critical for the survival of light-depending benthic flora and fauna. It may also deposit in areas where deposition is unwanted, for instance harbour inlets. Furthermore, pollutants are prone to adhere to cohesive sediment. If deposited in ecologically sensitive areas, it may affect the local flora and fauna and water quality in general. MIKE 21/3 Mud Transport can be used to analyse the effect of sedimentation on vegetation, biology and sediment inhomogenity to mitigate these concerns.

Apply MIKE 21 Spectral Waves to calculate the influence of waves on erosion deposition patterns.

Point sources of dissolved and/or suspended components are important in many applications such as the release of sediments from rivers, intakes and outlets from cooling water or desalination plants. With MIKE 21/3 Mud Transport, you can specify source concentrations individually as either specified concentration or excess concentration.

If the morphological changes within the area of interest are expected to be comparable to the water depth in certain areas, this software can take the morphological impact on the hydrodynamics into consideration. Typical areas where this is necessary are shallow areas where long term effects are being considered or dredging/dumping sites in shallow areas.

If several bed layers are used, a transition rate can be applied. This will cause sediment from the top layers to be transferred to the subsequently lower layers.

MIKE 21/3 Mud Transport takes advantage of the efficient parallelisation techniques implemented in MIKE 21 for the use of multiple cores and GPUs. Special techniques have also been developed to enhance calculation speed within the morphological modelling.

The Mud Transport module is based on a multi-bed layered approach where each layer is described by a critical shear stress for erosion, erosion coefficient, power of erosion, density of dry sediment and erosion function. The bed layers can be soft and partly consolidated or dense and consolidated. Consolidation is included as a transition rate of sediment between the layers and liquefaction by waves is included as a weakening of the bed due to breakdown of the bed structure.

Ready to get started?

Request a free trial of MIKE 21/3 Mud Transport or ask us for more details on how your project can benefit from this advanced mud transport modelling software.