Wind Engineering

Pedestrian Comfort

Air Quality

Exhaust Stack & Air
Intake Solutions

Sun / Shade / Glare

Snow Engineering

Ventilation

Noise, Acoustics & Vibration

Hazard & Risk

Computational Fluid Dynamics (CFD)

Regional Airshed Modeling

Regulatory Permitting

Stack & Field Testing

Laboratory Services

Master Planning

Sustainable Design

Protective Ventilation

Protective Ventilation: What to do for Chemical and Biological Releases

Emergency Management System

RWDI’s extensive experience in dispersion modeling is at your service to aid in developing mitigation against chemical and biological releases. RWDI has the resources to help you better understand your options for safer design, is able to assess the impact of a release with our wide selection of simulation methods, and will work interactively with your team on designing countermeasures.

With the understanding gained from our consulting experience, you will achieve greater confidence in the following:

  • Locating fresh air intakes, operable windows and doorways
  • Minimizing the penetration of chemical and biological agents through a leaky building façade
  • Filtering air intakes suitably and developing contingency plans in the event of filter failure
  • Protecting the building from an external release as well as containing any internal release through design parameters for the HVAC control system
  • Actively monitoring, tracking and predicting the dispersion of a chemical or biological release
  • Positioning monitoring equipment appropriately
  • Designing effective evacuation strategies
  • Reviewing the benefits in risk reduction strategies for various ventilation and design options under consideration

RWDI Services

Design Review (Identifying & Understanding Weaknesses)

RWDI works interactively with design teams early in the planning process to help save you time and money and reduce risk by identifying options for safer building design.

RWDI will help to identify and understand your building’s vulnerabilities to chemical and biological releases, which may include:

  • Entrances
  • Operable windows
  • Fresh air intakes
  • Leaky facades
  • Public areas within the building

Release Simulation & Interactive Countermeasure Design

RWDI has a variety of resources (see right column) to model and simulate intentional or accidental release scenarios to study building vulnerabilities and to develop mitigation strategies.

RWDI's risk assessment services and models are useful tools for considering the benefits of the various building design options and release / hazard management strategies under consideration. The results of our studies and the interactive consultation with your team, you will receive recommendations and design guidance to increase your building’s defenses.

RWDI’s Simulation Methods

Wind Flow CFD Studies

Using Computational Fluid Dynamics (CFD), visualize wind flows around your building to understand the dispersion patterns of a release.

Pollutant Dispersion Studies

wind tunnel

Quantify how susceptible different parts of your building are to a release originating from an external location and under different wind conditions.

External and Internal Pressure Distribution Studies

Determine the necessary internal airflow and pressure requirements to mitigate the effects of a release.

Internal Ventilation CFD Studies

Study the effects of the ventilation system on the dispersion patterns of an interior release.